Finding the Third Proportional to 34,645.50 and 74,830.50

Step by Step Solution

1. Step 1: Write the proportion equation
   34,645.50 : 74,830.50 = 74,830.50 : x
2. Step 2: Convert to fraction form
   34,645.50/74,830.50 = 74,830.50/x
3. Step 3: Cross multiply
   34,645.50x = 74,830.50 × 74,830.50
4. Step 4: Simplify right side
   34,645.50x = 5,599,603,730.25
5. Step 5: Solve for x
   x = 5,599,603,730.25/34,645.50
6. Step 6: Final answer
   x = 161,625.72